All reports of menu-icon-cannot-be-parsed for the archive. The extended description of this tag is:
The icon file could not be parsed. Perhaps this means a bad XPM file, or perhaps it means the Lintian parsing needs to be improved. If the window managers and standard tools accept the file then probably it's the latter; please file a bug on Lintian then.
This tag has not been emitted in any package tested by Lintian.